The Great Lakes Acoustic Music Association (GLAMA) is a Kalamazoo, Michigan-based all-volunteer nonprofit organization dedicated to acoustic music. GLAMA promotes earplug-free live music that invites participation, whether it's clapping, singing along with the chorus or picking out the chords. Through jam sessions, instructional workshops and the annual Cooper's Glen Music Festival, GLAMA works to widen the circle of acoustic music listeners and players in Southwest Michigan.